Olive Oil May Slow Gastric Emptying, Mouse Study Finds
New research suggests olive oil could impact blood sugar, though the effect has not been tested in humans.
Updated on Oct. 30, 2026 in Nutrition
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A recent mouse study found that consuming olive oil before glucose intake slows stomach emptying and alters key hormone secretion. These preliminary findings provide insight into how the oil may influence blood sugar regulation in a laboratory setting.
Why it matters
Understanding how fats impact gastric processes helps researchers explore potential dietary strategies for managing blood sugar. This study suggests that olive oil's influence on hormone signals is a factor currently under investigation for its role in metabolism.
In a preliminary study published by the American Diabetes Association, researchers observed that administering olive oil to mice before a glucose solution slowed gastric emptying. The trial documented increased secretion of glucagon, GIP, and GLP-1 hormones, though human efficacy remains unknown.
The players
American Diabetes Association
A professional organization that supports diabetes research and provides clinical guidelines for disease management.
UC Davis
A public research university known for its extensive food science and nutrition programs.
The details
The researchers suggest that olive oil works by delaying how quickly the stomach empties its contents into the small intestine. This process appears to trigger specific hormone and nerve signals that regulate blood sugar responses. Because olive oil is energy-dense, containing 120 calories per tablespoon, the potential benefits of regular ingestion must be weighed against total caloric intake.
Timeline
October 30, 2026: Findings from the olive oil study were published.
Health Landscape
This research contributes to a broader effort to define how specific macronutrients, such as monounsaturated fatty acids, interact with the body's glucose-regulating hormones. It expands on the American Diabetes Association's research initiatives by testing how meal composition affects gastric emptying.
While olive oil is known to improve HDL and decrease LDL cholesterol levels, these new findings are limited to mice and do not warrant dietary changes. Before adjusting your intake or adding calorie-dense shots to your routine, discuss these preliminary results with your doctor.
The takeaway
Although the study highlights interesting biological mechanisms, consuming extra olive oil adds significant calories, with three daily shots totaling 360 calories. Focus on maintaining a balanced diet and consult your physician before adding concentrated fats to manage your blood sugar levels.
Further reading
For more information on dietary habits and metabolism, visit our Nutrition section.
Source note: This article includes information reported by Newsweek.
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